[vtkusers] Problems with vtkDICOMImageReader

Mathieu Malaterre mathieu.malaterre at gmail.com
Wed Dec 5 12:20:33 EST 2007

On Dec 4, 2007 7:05 PM, Paulo Henrique Junqueira Amorim
<paulojamorim at gmail.com> wrote:
> Hello all,
> I am using the class vtkDICOMImageReader (VTK 5.1.0) to read several dicom
> files acquired with different CT equipments. It worked fine for more than
> 200 cases.
> However, recently, I had trouble reading dicom files acquired with Toshiba
> Aquilion. The image returned by the vtkDICOMImageReader is noisy (full of
> grayscale dots), pretty similar to fft output. Does anyone know how to solve
> this?
> I'm attaching one of the files acquired with Toshiba Aquilion so other
> developers can reproduce the problem.
> http://geocities.yahoo.com.br/phamorim/dicom.zip

Hi  Paulo,

 The image was compressed using a lossless JPEG codec.
vtkDICOMImageReader only handles default DICOM syntax which is
garanteed to be supported on any scanner. You could contact your PACS
admin to export DICOM as uncompressed, or alternatively -as Sean
mentionned- switch to another DICOM library.


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